Specifications: -Power consumption of the Power Meter Monit: 0.5W -Operating voltage: 230VAC -Frequency display: 50HZ -Operating current: max 16A -Wide voltage range: 230V-250V -The set Wattage display (Watts) is 0W-9999W; but the real Wattage display (Watts) is 0-3680W -Timing display range: 0 second-9999 days -Voltage display range: 0V-9999V -Current display (amps): 0.000A-16.000A -Frequency display: 0Hz-9999Hz -Price display range: 0.00COST/KWH99.99COST/KWH -Total KWh cost display: 0.000KWh-9999KWh, 0.00COST----9999COST . This one does not have backlight This product is a multifunctional socket that automatically calculates electricity bills while measuring the power consumption, voltage, current, timing other functions of the electrical appliances used. The product can meet the stards of different countries such as Germany, Britain, Australia, the United States, France, Italy, Israel, Belgium, Denmark, South Africa. custom made Remarque : les donnes sont toutes mesures manuellement, veuillez autiser une erreur de 1 3 cm, en raison de la diffrence de lumire et d'affichage, il y aura une certaine diffrence de couleur, l'objet rel reu prvaudra.